GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

DEFINITION: Use this diagnostic in order to diagnose the endgate identification lamps only if the rear tailights are operative.

1

Did you perform the Exterior Lamps System Check?

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Go to Step 2

Go to Exterior Lights System Check

2

  1. Disconnect connector C408.
  2. Place the headlamp switch in the Park Lamps position.
  3. Connect a J 35616-200 test lamp between connector C408, cavity A and ground.

Does the test lamp light?

--

Go to Step 3

Go to Step 5

3

Connect a J 35616-200 test lamp across cavities A and B of connector C408.

Does the test lamp light?

--

Go to Step 4

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4

Replace the endgate identification lamp assembly.

Is the repair complete?

--

Go to Exterior Lights System Check

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5

Repair the open in CKT 9 (BRN) between the endgate identification lamps and splice S413.

Is the repair complete?

--

Go to Exterior Lights System Check

--

6

Repair the open in CKT 150 (BLK) between the endgate identification lamps and splice S411.

Is the repair complete?

--

Go to Exterior Lights System Check

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